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Improved Satellite Navigation with Combined GPS and GLONASS Systems

Learn about the benefits of using combined GPS and GLONASS systems to improve satellite navigation. Increase availability and accuracy in challenging situations like urban canyons, offshore structures, and fjords.

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Improved Satellite Navigation with Combined GPS and GLONASS Systems

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  1. PNT Advisory Board Nov 2009 Arve DimmenDirector Maritime Safety Norwegian Coastal Administration

  2. IMO e-navigationWork programme

  3. GPS + GLONASS = approx 50 satellites Combined systems improve availability of satellite navigation in situations where part of the sky is blocked.- Urban Canyons- Offshore structures- Fjords Advantages of combined GPS and GLONASS PPP - experiences based on G2, a new service from Fugro IAIN 2009 Stockholm

  4. Conclusions • First real-time GPS/GLONASS PPP service • Developed by Fugro in cooperation with ESA/ESOC • Test results confirm decimetre level accuracy • GLONASS improves availability, robustness and convergence time Future Galileo, … Advantages of combined GPS and GLONASS PPP - experiences based on G2, a new service from Fugro IAIN 2009 Stockholm

  5. Glonass status The next slides comes from: 13-th International Association of Institutes of Navigation World Congress, 27-30 October, 2009, Stockholm, by Sergei Revnivykh

  6. GLONASS Improvement Events In 2007-2008 12 GLONASS-M satellites launched 1st phase of Ground Control modernization Refined geodesy reference implemented (PZ-90.02) 19 GLONASS-M Satellites in orbit (two civil signals inL1 и L2) Next launches (delayed): December 2009 3 “Glonass-M” sats 1-st quarter 2010 3 “Glonass-M” sats Блок 36. 26.10.2007 Блок 37. 25.12.2007 Блок 38. 25.09.2008 Блок 39. 25.12.2008 9

  7. GLONASS Accuracy • GLONASS accuracy has 5 time improved for last three years 20.02.2006 25 m (1 sigma) • Now it is the same order of GPS • Next improvement phase is expected by 2011 20.02.2007 18 m (1 sigma) 20.02.2008 15 m (1 sigma) 20.02.2009 5-7 m (1 sigma) 10

  8. GLONASS Strategy Planning Number of operational satellites • Full constellation deployment in 2010 • Ground Control Segment modernization • New GLONASS-K satellite (with improved performance) IOV start by 2010 • GLONASS will continue transmitting existing FDMA signals • Additional new CDMA signals since GLONASS-K deployment • GLONASS performance competitiveability provision plan • GLONASS Federal Program extension until 2020 11

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